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1977 GMC G15

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ACDelco 18M1878 Brake Master Cylinder
for 1977 GMC G15

ACDelco 18M1878 Brake Master Cylinder - 1977 GMC G15 Image 1
ACDelco 18M1878 Brake Master Cylinder - 1977 GMC G15 Image 2
ACDelco 18M1878 Brake Master Cylinder - 1977 GMC G15 Image 3
ACDelco 18M1878 Brake Master Cylinder - 1977 GMC G15 Image 4
ACDelco 18M1878 Brake Master Cylinder - 1977 GMC G15 Image 5
ACDelco 18M1878 Brake Master Cylinder - 1977 GMC G15 Image 6
ACDelco 18M1878 Brake Master Cylinder - 1977 GMC G15 Image 7
ACDelco 18M1878 Brake Master Cylinder - 1977 GMC G15 Image 8
ACDelco 18M1878 Brake Master Cylinder - 1977 GMC G15

ACDelco
Brand:ACDelco
Part Number: 18M1878
UPC: 00707773315026
Weight: 1.4 lbs
Condition:New



On Sale:

$57.39

Availability:
300 in Stock
Warehouse: US-4
Quantity:

Product Information

Description:

Get the ACDelco 18M1878 Brake Master Cylinder for your 1977 GMC G15. Buy now and secure your purchase online!

ACDelco Professional Brake Master Cylinders use both aluminum and iron castings, making them a high quality replacement for many vehicles on the road today. These master cylinders contain both Ethylene Propylene (EPDM) and Styrene Butadiene (SBR) rubber components to provide superior resistance to heat, corrosion, and leakage. ACDelco Professional Brake Master Cylinders are ready to bench bleed and install right out of the box - no assembly required. These premium aftermarket replacement brake master cylinders are manufactured to meet your expectations for fit, form, and function. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

  • Cast iron and aluminum specifications; no extra stress on the brake boosting mounting
  • Geometrical tolerance ensures that the body and plastic reservoir match for a proper fit
  • Meets the brake performance requirements of SAE J1153 and J1154 testing, providing reliability and quality
  • Piston assembly and return spring help to prevent brake drag, which can cause premature brake pad wear
  • Pressure tested to ensure safe and confident braking

Specifications:

Bleeder Hoses Included:
Yes
Bore Size:
1.125 in.
Brake Booster Included:
No
Height (in):
4.8 in
Length (in):
9.4 in
Master Cylinder Bore Diameter:
1.125 in.
Master Cylinder Bore Diameter:
28.575 mm
Master Cylinder Cap Included:
Yes
Master Cylinder Material:
Iron
Mounting Bracket Included:
No
Mounting Hole Diameter:
0.423 in.
Mounting Hole Quantity:
2
Port Quantity:
2
Primary Outlet Thread Diameter:
0.5 in.
Primary Outlet Thread Diameter:
12.7 mm
Programming Required:
No
Push Rod Included:
No
Reservoir Included:
Yes
Secondary Outlet Thread Diameter:
0.5625 in.
Secondary Outlet Thread Diameter:
14.287 mm
Weight (lb):
1.4 lb
Width (in):
5.8 in

Features and Benefits:

  • – Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
  • – Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
  • – Check the thickness of your brake pads.
  • – Inspect the brake lines for rust, punctures, or visible leaks (You may be able to do this, but consult a qualified technician if necessary).
  • – Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
  • – Inspection of the brake hoses for brittleness or cracking.
  • – Inspection of wheel bearings and grease seals.
  • – Parking brake adjustments (as needed).
  • The following inspections and maintenance procedures can help prevent potential brake problems:
  • The following should be conducted by a qualified technician:

Specifications:

Country of Origin:
CN

ACDelco 18M1878 Brake Master Cylinder compatibility with your 1977 GMC G15...

Last Updated: 03/09/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1978

 

1977

 

1978

 

1977

 
GMC G15

4.1L L6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV
1
 
Professional
Power Brakes
 

GMC G15



4.1L L6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV Professional
Power Brakes

1 Per Vehicle

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